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參數資料
| 型號： | 74VHC157T |
| 廠商： | 意法半導體 |
| 英文描述： | Quadruple 2-Input Positive-NAND Gates 14-TSSOP -40 to 85 |
| 中文描述： | 四2通道多 |
| 文件頁數： | 1/9頁 |
| 文件大小： | 65K |
| 代理商： | 74VHC157T |
74VHC157
QUAD 2 CHANNEL MULTIPLEXER
PRELIMINARY DATA
June 1999
I
HIGHSPEED:t
PD
=4.1ns(TYP.)atV
CC
= 5V
I
LOWPOWERDISSIPATION:
I
CC
=4
μ
A(MAX.) at T
A
=25
o
C
I
HIGHNOISEIMMUNITY:
V
NIH
= V
NIL
=28%V
CC
(MIN.)
I
POWERDOWN PROTECTIONON INPUTS
I
SYMMETRICALOUTPUTIMPEDANCE:
|I
OH
| = I
OL
= 8 mA(MIN)
I
BALANCEDPROPAGATIONDELAYS:
t
PLH
t
PHL
I
OPERATINGVOLTAGERANGE:
V
CC
(OPR)= 2Vto 5.5V
I
PINANDFUNCTION COMPATIBLEWITH
74SERIES157
I
IMPROVEDLATCH-UP IMMUNITY
I
LOWNOISE:V
OLP
= 0.8V(Max.)
DESCRIPTION
The 74VHC157 is an high-speed CMOS QUAD
2-CHANNEL
MULTIPLEXER
sub-micron silicon gate and double-layer metal
wiring C
2
MOS technology.
It consists of four 2-input digital multiplexers with
common select and strobe inputs. It
fabricated
with
is a
non-inverting multiplexer. When the STROBE
input is held high, selection of data is inhibited
and all the outputs become low. The SELECT
decoding determines whether the A or B inputs
get routed to theircorresponding Youtputs.
Power down protection is provided on all inputs
and 0 to 7V can be accepted on inputs with no
regard to the supply voltage. This device can be
used to interface 5V to 3V.All inputs and outputs
are equippedwith protectioncircuits against static
discharge, giving them 2KV ESD immunity and
transientexcess voltage.
PIN CONNECTION AND IEC LOGIC SYMBOLS
M1
(Micro Package)
T
(TSSOPPackage)
ORDER CODES :
74VHC157M
74VHC157T
1/9
相關PDF資料 |
PDF描述 |
|---|---|
| 74VHC157 | Quad 2 Channel Multiplexer(四二通道多路復用器) |
| 74VHC16240 | 16-BIT BUS BUFFER WITH 3-STATE OUTPUTS (INVERTED) |
| 74VHC16240TTR | 16-BIT BUS BUFFER WITH 3-STATE OUTPUTS (INVERTED) |
| 74VHC16245 | 16-BIT BUS TRANSCEIVER |
| 74VHC16245TTR | 16-BIT BUS TRANSCEIVER |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 74VHC157TTR | 功能描述:編碼器、解碼器、復用器和解復用器 Quad 2-Ch Multiplexr RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| 74VHC16 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:8-Bit Serial-In, Parallel-Out Shift Register |
| 74VHC161 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:4-Bit Binary Counter with Asynchronous Clear |
| 74VHC161284 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:IEEE 1284 Transceiver |
| 74VHC161284MEA | 功能描述:總線收發器 IEEE 16284 Trans RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
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